Home / 21,339.52-29,448.51-11,908.08

Finding the Fourth Proportional to 21,339.52, 29,448.51 and 11,908.08

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Solution

The fourth proportional to 21,339.52, 29,448.51 and 11,908.08 is: 16,433.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339.52 : 29,448.51 = 11,908.08 : x
  2. Step 2: Convert to fraction form
    21,339.52/29,448.51 = 11,908.08/x
  3. Step 3: Cross multiply
    21,339.52x = 29,448.51 × 11,908.08
  4. Step 4: Simplify right side
    21,339.52x = 350,675,168.31
  5. Step 5: Solve for x
    x = 350,675,168.31/21,339.52
  6. Step 6: Final answer
    x = 16,433.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.